CN1665904A - 发光组合物 - Google Patents
发光组合物 Download PDFInfo
- Publication number
- CN1665904A CN1665904A CN038156962A CN03815696A CN1665904A CN 1665904 A CN1665904 A CN 1665904A CN 038156962 A CN038156962 A CN 038156962A CN 03815696 A CN03815696 A CN 03815696A CN 1665904 A CN1665904 A CN 1665904A
- Authority
- CN
- China
- Prior art keywords
- composition
- liquid crystal
- mesomorphic phase
- crystal molecule
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3491—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3491—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom
- C09K19/3497—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom the heterocyclic ring containing sulfur and nitrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
- Liquid Crystal Substances (AREA)
- Luminescent Compositions (AREA)
- Steroid Compounds (AREA)
- Liquid Crystal (AREA)
- Plural Heterocyclic Compounds (AREA)
- Polarising Elements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0215153.8 | 2002-07-01 | ||
GBGB0215153.8A GB0215153D0 (en) | 2002-07-01 | 2002-07-01 | Luminescent compositions |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1665904A true CN1665904A (zh) | 2005-09-07 |
Family
ID=9939604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN038156962A Pending CN1665904A (zh) | 2002-07-01 | 2003-06-30 | 发光组合物 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20050253112A1 (ja) |
EP (1) | EP1523533B1 (ja) |
JP (1) | JP2005531664A (ja) |
KR (1) | KR20050120573A (ja) |
CN (1) | CN1665904A (ja) |
AT (1) | ATE370211T1 (ja) |
AU (1) | AU2003253095A1 (ja) |
DE (1) | DE60315657D1 (ja) |
GB (1) | GB0215153D0 (ja) |
WO (1) | WO2004003108A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111641046A (zh) * | 2020-05-07 | 2020-09-08 | 宁波大学 | 一种微波段宽带圆二色性手性吸波器 |
Families Citing this family (70)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7217824B2 (en) | 2003-05-16 | 2007-05-15 | Sumitomo Chemical Company, Limited | Process for preparing a 4,7-bis(5-halothien-2-yl)-2,1,3-benzothiadiazole and a precursor therefor |
DE10353094A1 (de) * | 2003-11-12 | 2005-06-09 | H.C. Starck Gmbh | Verfahren zur Herstellung linearer organischer Thiophen-Phenylen-Oligomere |
JP2005243432A (ja) * | 2004-02-26 | 2005-09-08 | Fuji Photo Film Co Ltd | 発光素子 |
EP1763473B1 (en) | 2004-04-30 | 2007-10-17 | G.D. Societa' per Azioni | Rigid hinged-lid package for tobacco articles |
KR100645830B1 (ko) * | 2005-09-29 | 2006-11-14 | 고려대학교 산학협력단 | 극성 네마틱 액정 어셈블리 및 이를 이용한 액정 소자 |
GB0816557D0 (en) * | 2008-09-10 | 2008-10-15 | Merck Patent Gmbh | Electro-optical switching element and electro-optical display |
US8637331B2 (en) | 2008-10-17 | 2014-01-28 | Bloominescence, Llc | Transparent polarized light-emitting device |
WO2010045606A1 (en) * | 2008-10-17 | 2010-04-22 | Bloominescence, Inc. | Transparent polarized light-emitting device |
US8153822B2 (en) * | 2009-02-02 | 2012-04-10 | Fuji Xerox Co., Ltd. | Fluorene compound |
KR101792266B1 (ko) | 2009-04-06 | 2017-10-31 | 아리조나 보드 오브 리전트스, 아리조나주의 아리조나 주립대 대행법인 | 백금 4 배위 착물 합성 및 발광소자에서의 착물 적용 |
GB2478287A (en) * | 2010-03-01 | 2011-09-07 | Merck Patent Gmbh | Electro-optical switching element and electro-optical display |
JP2013530135A (ja) | 2010-04-30 | 2013-07-25 | アリゾナ ボード オブ リージェンツ アクティング フォー アンド オン ビハーフ オブ アリゾナ ステイト ユニバーシティ | 四配位パラジウム錯体の合成およびその発光素子におけるその適用 |
TWI541247B (zh) | 2011-02-18 | 2016-07-11 | 美國亞利桑那州立大學董事會 | 具有幾何失真電荷轉移態之四配位鉑及鈀錯合物及彼等於發光裝置中之應用 |
US9238668B2 (en) | 2011-05-26 | 2016-01-19 | Arizona Board Of Regents, Acting For And On Behalf Of Arizona State University | Synthesis of platinum and palladium complexes as narrow-band phosphorescent emitters for full color displays |
TWI589677B (zh) * | 2011-11-15 | 2017-07-01 | 迪愛生股份有限公司 | 鐵電性液晶組成物及鐵電性液晶顯示元件 |
GB201213392D0 (en) * | 2012-07-27 | 2012-09-12 | Imp Innovations Ltd | Electroluminescent compositions |
WO2014031977A1 (en) | 2012-08-24 | 2014-02-27 | Arizona Board Of Regents For And On Behalf Of Arizona State University | Metal compounds and methods and uses thereof |
US9882150B2 (en) | 2012-09-24 | 2018-01-30 | Arizona Board Of Regents For And On Behalf Of Arizona State University | Metal compounds, methods, and uses thereof |
US20150274762A1 (en) | 2012-10-26 | 2015-10-01 | Arizona Board Of Regents Acting For And On Behalf Of Arizona State University | Metal complexes, methods, and uses thereof |
CN103896853A (zh) * | 2012-12-27 | 2014-07-02 | 海洋王照明科技股份有限公司 | 嘧啶基电子传输材料及其制备方法和有机电致发光器件 |
US9673409B2 (en) | 2013-06-10 | 2017-06-06 | Arizona Board Of Regents On Behalf Of Arizona State University | Phosphorescent tetradentate metal complexes having modified emission spectra |
JP6804823B2 (ja) | 2013-10-14 | 2020-12-23 | アリゾナ・ボード・オブ・リージェンツ・オン・ビハーフ・オブ・アリゾナ・ステイト・ユニバーシティーArizona Board of Regents on behalf of Arizona State University | 白金錯体およびデバイス |
US10020455B2 (en) | 2014-01-07 | 2018-07-10 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate platinum and palladium complex emitters containing phenyl-pyrazole and its analogues |
US10056567B2 (en) | 2014-02-28 | 2018-08-21 | Arizona Board Of Regents On Behalf Of Arizona State University | Chiral metal complexes as emitters for organic polarized electroluminescent devices |
US9941479B2 (en) | 2014-06-02 | 2018-04-10 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate cyclometalated platinum complexes containing 9,10-dihydroacridine and its analogues |
US9923155B2 (en) | 2014-07-24 | 2018-03-20 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate platinum (II) complexes cyclometalated with functionalized phenyl carbene ligands and their analogues |
US9502671B2 (en) | 2014-07-28 | 2016-11-22 | Arizona Board Of Regents On Behalf Of Arizona State University | Tridentate cyclometalated metal complexes with six-membered coordination rings |
US9818959B2 (en) | 2014-07-29 | 2017-11-14 | Arizona Board of Regents on behlaf of Arizona State University | Metal-assisted delayed fluorescent emitters containing tridentate ligands |
WO2016025921A1 (en) | 2014-08-15 | 2016-02-18 | Arizona Board Of Regents On Behalf Of Arizona State University | Non-platinum metal complexes for excimer based single dopant white organic light emitting diodes |
US11329244B2 (en) | 2014-08-22 | 2022-05-10 | Arizona Board Of Regents On Behalf Of Arizona State University | Organic light-emitting diodes with fluorescent and phosphorescent emitters |
US9920242B2 (en) | 2014-08-22 | 2018-03-20 | Arizona Board Of Regents On Behalf Of Arizona State University | Metal-assisted delayed fluorescent materials as co-host materials for fluorescent OLEDs |
US9865825B2 (en) | 2014-11-10 | 2018-01-09 | Arizona Board Of Regents On Behalf Of Arizona State University | Emitters based on octahedral metal complexes |
US10033003B2 (en) | 2014-11-10 | 2018-07-24 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate metal complexes with carbon group bridging ligands |
CN113397472A (zh) | 2015-03-16 | 2021-09-17 | 奇跃公司 | 穿戴式增强现实装置和穿戴式虚拟现实装置 |
US9711739B2 (en) | 2015-06-02 | 2017-07-18 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate metal complexes containing indoloacridine and its analogues |
US9879039B2 (en) | 2015-06-03 | 2018-01-30 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate and octahedral metal complexes containing naphthyridinocarbazole and its analogues |
WO2016197019A1 (en) | 2015-06-04 | 2016-12-08 | Jian Li | Transparent electroluminescent devices with controlled one-side emissive displays |
AU2016278006B2 (en) | 2015-06-15 | 2021-09-02 | Magic Leap, Inc. | Virtual and augmented reality systems and methods |
US10158091B2 (en) | 2015-08-04 | 2018-12-18 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate platinum (II) and palladium (II) complexes, devices, and uses thereof |
CA3019946C (en) | 2016-04-08 | 2023-02-28 | Magic Leap, Inc. | Augmented reality systems and methods with variable focus lens elements |
US11335865B2 (en) | 2016-04-15 | 2022-05-17 | Arizona Board Of Regents On Behalf Of Arizona State University | OLED with multi-emissive material layer |
US10177323B2 (en) | 2016-08-22 | 2019-01-08 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate platinum (II) and palladium (II) complexes and octahedral iridium complexes employing azepine functional groups and their analogues |
US10822363B2 (en) | 2016-10-12 | 2020-11-03 | Arizona Board Of Regents On Behalf Of Arizona State University | Narrow band red phosphorescent tetradentate platinum (II) complexes |
IL266669B2 (en) | 2016-11-18 | 2023-11-01 | Magic Leap Inc | Liquid crystal refraction lattices vary spatially |
US11067860B2 (en) | 2016-11-18 | 2021-07-20 | Magic Leap, Inc. | Liquid crystal diffractive devices with nano-scale pattern and methods of manufacturing the same |
CN110199220B (zh) | 2016-11-18 | 2022-11-01 | 奇跃公司 | 使用交叉光栅的波导光复用器 |
CN110178077B (zh) | 2016-11-18 | 2022-08-30 | 奇跃公司 | 用于重定向具有宽入射角范围的光的多层液晶衍射光栅 |
KR20230144109A (ko) | 2016-12-08 | 2023-10-13 | 매직 립, 인코포레이티드 | 콜레스테릭 액정에 기초한 회절 디바이스들 |
EP3555700B1 (en) | 2016-12-14 | 2023-09-13 | Magic Leap, Inc. | Patterning of liquid crystals using soft-imprint replication of surface alignment patterns |
US11183670B2 (en) | 2016-12-16 | 2021-11-23 | Arizona Board Of Regents On Behalf Of Arizona State University | Organic light emitting diode with split emissive layer |
AU2018210527B2 (en) | 2017-01-23 | 2022-12-01 | Magic Leap, Inc. | Eyepiece for virtual, augmented, or mixed reality systems |
WO2018140765A1 (en) | 2017-01-27 | 2018-08-02 | Jian Li | Metal-assisted delayed fluorescent emitters employing pyrido-pyrrolo-acridine and analogues |
WO2018152506A1 (en) * | 2017-02-17 | 2018-08-23 | Red Bank Technologies, LLC | Circularly polarized light emitting organic light emitting diodes |
KR20230157533A (ko) | 2017-02-23 | 2023-11-16 | 매직 립, 인코포레이티드 | 가변 파워 반사기를 갖는 디스플레이 시스템 |
IL299401A (en) * | 2017-03-21 | 2023-02-01 | Magic Leap Inc | Stacked waveguides with different refractive gratings for an integrated field of view |
CN110637249B (zh) | 2017-03-21 | 2022-07-01 | 奇跃公司 | 光学设备、头戴式显示器、成像系统和对对象成像的方法 |
US10516117B2 (en) | 2017-05-19 | 2019-12-24 | Arizona Board Of Regents On Behalf Of Arizona State University | Metal-assisted delayed fluorescent emttters employing benzo-imidazo-phenanthridine and analogues |
US11101435B2 (en) | 2017-05-19 | 2021-08-24 | Arizona Board Of Regents On Behalf Of Arizona State University | Tetradentate platinum and palladium complexes based on biscarbazole and analogues |
CA3075096A1 (en) | 2017-09-21 | 2019-03-28 | Magic Leap, Inc. | Augmented reality display with waveguide configured to capture images of eye and/or environment |
KR20200065064A (ko) | 2017-10-17 | 2020-06-08 | 지안 리 | 표시 및 조명 분야용 단색성 이미터로서의, 바람직한 분자 배향을 갖는 인광성 엑시머 |
US11647643B2 (en) | 2017-10-17 | 2023-05-09 | Arizona Board Of Regents On Behalf Of Arizona State University | Hole-blocking materials for organic light emitting diodes |
CA3084011C (en) | 2017-12-15 | 2024-06-11 | Magic Leap, Inc. | Eyepieces for augmented reality display system |
JP7055348B2 (ja) * | 2018-02-15 | 2022-04-18 | 学校法人立命館 | 円偏光発光用組成物 |
US11237393B2 (en) | 2018-11-20 | 2022-02-01 | Magic Leap, Inc. | Eyepieces for augmented reality display system |
US11878988B2 (en) | 2019-01-24 | 2024-01-23 | Arizona Board Of Regents On Behalf Of Arizona State University | Blue phosphorescent emitters employing functionalized imidazophenthridine and analogues |
US11594691B2 (en) | 2019-01-25 | 2023-02-28 | Arizona Board Of Regents On Behalf Of Arizona State University | Light outcoupling efficiency of phosphorescent OLEDs by mixing horizontally aligned fluorescent emitters |
CN114286962A (zh) | 2019-06-20 | 2022-04-05 | 奇跃公司 | 用于增强现实显示系统的目镜 |
US11785838B2 (en) | 2019-10-02 | 2023-10-10 | Arizona Board Of Regents On Behalf Of Arizona State University | Green and red organic light-emitting diodes employing excimer emitters |
US11945985B2 (en) | 2020-05-19 | 2024-04-02 | Arizona Board Of Regents On Behalf Of Arizona State University | Metal assisted delayed fluorescent emitters for organic light-emitting diodes |
FR3115792B1 (fr) | 2020-10-30 | 2023-06-23 | Univ Rennes | Composition de couche émettrice pour DELO à polarisation circulaire |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997007654A1 (en) * | 1995-08-21 | 1997-02-27 | Philips Electronics N.V. | Electroluminescent device |
KR0176331B1 (ko) * | 1996-05-16 | 1999-04-01 | 박원훈 | 전계 발광 소자용 플로렌계 교대 공중합체 및 이를 발광재료로 사용한 전계 발광 소자 |
KR0176336B1 (ko) * | 1996-12-31 | 1999-04-01 | 박원훈 | 아세틸렌기를 함유한 플로렌계 교대 공중합체 및 이를 이용한 전계발광소자 |
KR100280709B1 (ko) * | 1998-11-12 | 2001-02-01 | 김순택 | 발광 화합물 및 이를 발색재료로서 채용하고있는 표시소자 |
US6867243B2 (en) * | 2001-06-29 | 2005-03-15 | University Of Hull | Light emitting polymer |
-
2002
- 2002-07-01 GB GBGB0215153.8A patent/GB0215153D0/en not_active Ceased
-
2003
- 2003-06-30 JP JP2004516958A patent/JP2005531664A/ja not_active Withdrawn
- 2003-06-30 DE DE60315657T patent/DE60315657D1/de not_active Expired - Lifetime
- 2003-06-30 CN CN038156962A patent/CN1665904A/zh active Pending
- 2003-06-30 AT AT03761697T patent/ATE370211T1/de not_active IP Right Cessation
- 2003-06-30 US US10/519,761 patent/US20050253112A1/en not_active Abandoned
- 2003-06-30 EP EP03761697A patent/EP1523533B1/en not_active Expired - Lifetime
- 2003-06-30 KR KR1020047021556A patent/KR20050120573A/ko not_active Application Discontinuation
- 2003-06-30 AU AU2003253095A patent/AU2003253095A1/en not_active Abandoned
- 2003-06-30 WO PCT/GB2003/002777 patent/WO2004003108A1/en active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111641046A (zh) * | 2020-05-07 | 2020-09-08 | 宁波大学 | 一种微波段宽带圆二色性手性吸波器 |
Also Published As
Publication number | Publication date |
---|---|
KR20050120573A (ko) | 2005-12-22 |
JP2005531664A (ja) | 2005-10-20 |
ATE370211T1 (de) | 2007-09-15 |
DE60315657D1 (de) | 2007-09-27 |
US20050253112A1 (en) | 2005-11-17 |
WO2004003108A1 (en) | 2004-01-08 |
EP1523533B1 (en) | 2007-08-15 |
AU2003253095A1 (en) | 2004-01-19 |
EP1523533A1 (en) | 2005-04-20 |
GB0215153D0 (en) | 2002-08-07 |
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